Electronics Forum | Thu Jun 04 09:29:21 EDT 1998 | Chrys
I have gold fingers that I want to mask when running over the wave without pallets. They're on the leading edge of the board. I recall seeing rubber boots that slid onto the fingers to mask them. Pop 'em on before the wave; pop' em off after and r
Electronics Forum | Fri Oct 05 18:59:53 EDT 2001 | Dan Steffler
I have had an issue where solder has contaminated gold plated pads (fingers) where it is not acceptable. The pads must remain perfectly coplaniar for a LCD zebra strip to lay accross them. Does anyone know of a way to remove the marriage level of s
Electronics Forum | Tue Jun 28 10:51:32 EDT 2005 | mattkehoe
Thanks for the replies, - solder paste used ? NC ? other ? Water soluble 63/37 paste - reflow in Air or N2 ? Infrared - temp ramp up before soack (�C/second) ? Will have to check. This profile has been used on numerous gold plated boards in our
Electronics Forum | Sat Jul 29 07:17:34 EDT 2006 | Ali Uzel
Hi all, I do know a little on PCB manufacturing. I would like to know whether using gold on PCB pads can cause soldering problems, both using automation and by hand. We are using a new device, 484-pin, 0.8mm, BGA and 0402 size capacitors. Or it can
Electronics Forum | Fri Feb 28 01:36:43 EST 2020 | crystal12
> What is the use of gold plated boards? <BR> <BR> With the increasing integration of IC, the more IC the more dense. The vertical tin spray process is difficult to flatten the pads, which brings difficulty to the SMT mounting, and
Electronics Forum | Thu Jan 13 12:36:09 EST 2000 | Wolfgang Busko
Tony: Have a mask applied by the boardhouse which can be removed after soldering. We worked with pallets or tape but had bad luck with some boards. At present I would prefer a mask. M2C Wolfgang
Electronics Forum | Thu Jan 13 12:47:03 EST 2000 | morris
Wolfgang: What is the mask material? What type of process/tools are required to remove it? Approximate cost per PCB?
Electronics Forum | Wed Jun 25 08:50:54 EDT 2003 | russ
I believe that Fancort makes some finger protectors that are made of Metal (Aluminum, titanium, etc...) I don't know how well these would process through placement equipment however due to their thickness. Could you clean the Kapton residue off just
Electronics Forum | Wed Jun 25 08:58:02 EDT 2003 | cyber_wolf
I need something that is very thin so I can screen print while the fingers are protected. We have tried cleaning the fingers prior to shipment, but our customer tells us that even alcohol leaves enough residue to cause problems.
Electronics Forum | Mon Aug 02 11:21:29 EDT 2004 | sforman1
Use MicroCoat Technologies UV cure solder mask. will leave PCB absolutely clean. used in many PCB solder/wirebonding apps. http://www.m-coat.com
